Method for setting exact filling level of cooling medium in cooling circuit of a vehicle

A technology of cooling medium and cooling cycle, which is applied in the direction of engine cooling, slack regulator, machine/engine, etc., and can solve problems such as overfilling
CN101858243AInactive Publication Date: 2010-10-13VOITH PATENT GMBH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
VOITH PATENT GMBH
Publication Date
2010-10-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a method for setting cooling medium distribution in a cooling circulation of motor vehicle, wherein, the circulation of cooling medium used for cooling a driving motor and / or other device is realized; wherein, a hydraulic retarder is provided in a cooling circulation and comprises a driven main impeller and a secondary impeller that commonly form an annular-surface-shaped operation chamber capable of being filled with or drained with operation medium selectively thereby transferring torque from the main impeller to the secondary impeller through hydraulic force; wherein, the cooling medium of the cooling circulation is simultaneously the operation medium of the hydraulic retarder; and the method comprises a step of: at the instant before the beginning and / or finishing of the stop process of motor vehicle, or the instant after the beginning and / or finishing of the stop process of motor vehicle or the period when the stop process of the motor vehicle begins and / or finishes, always completely or almost completely filling the operation chamber of the hydraulic retarder with operation medium.
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Description

technical field

[0001] The invention relates to a method for regulating the precise filling level of a coolant in a cooling circuit of a motor vehicle, in particular in a coolant storage tank, wherein a coolant circulates for cooling a drive motor and / or other devices. In this case, a hydrodynamic retarder is arranged in the cooling circuit, the working medium of which is the cooling medium of the cooling circuit. Background technique

[0002] Cooling cycles of this type have been known several times in the prior art. Usually, for braking by means of a hydrodynamic retarder, part of the cooling medium circulated in the cooling circuit is introduced into the working chamber formed by the main impeller (rotor) and the secondary impeller (stator). Depending on the quantity of cooling medium (filling degree) that is present in the working chamber as working medium, the torque is transmitted more or less hydraulically from the main impeller to the secondary impeller, whereby the...

Claims

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